Seagate ST3500830NS ユーザーズマニュアル

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Barracuda ES Serial ATA Product Manual, Rev. D
15
2.4
Recording and interface technology  
2.5
Physical characteristics  
750GB
500GB
400GB
320GB
250GB
Interface
Serial ATA (SATA)
Recording method
Perpendicular
Recording density, KBPI (kbits/inch max)
926
813
781
813
Track density, KTPI (ktracks/inch avg)
145
Areal density (Gbits/inch
2
 avg)
128.2
114.4
Spindle speed (RPM) (± 0.2%)
7,200
Internal data transfer rate (Mbits/sec max)
1,030
Sustained data transfer rate (Mbytes/sec max)
78
72
I/O data-transfer rate (Mbytes/sec max)
300 (Ultra DMA mode 5)
Maximum height
26.1 mm (1.028 inches)
Maximum width
101.6 mm (4.000 +/- 0.010 inches)
Maximum length
146.99 mm (5.787 inches)
Max weight
ST3750640NS and ST3750840NS
720 grams (1.59 lbs)
ST3500630NS, ST3500830NS, ST3400620NS, 
ST3400820NS, ST3320620NS and ST3320820NS
635 grams (1.4 lbs)
ST3250620NS and ST3250820NS
580 grams (1.28 lbs)
Cache buffer
   ST3750640NS
 
   ST3500630NS
 
   ST3400620NS
 
   ST3320620NS
 
   ST3250620NS
16 Mbytes (16,384 kbytes)
   ST3750840NS
 
   ST3500830NS
 
   ST3400820NS
 
   ST3320820NS
 
   ST3250820NS
8 Mbytes (8,192 kbytes)